headlines this hour, 40 people have been know to have died in the storm in the northeastern united states. tens of thousands of people have had to spend a second night in emergency shelters. you are familiar enough with these, of course. bananas are just about the most popular fruit in the world, but they could be replacing some staples in the parts of the world affected by climate change. the report commissioned by the un security council says that the production of these foods will decrease in many developing countries and that bananas might make a suitable replacement. joining me from edinburgh is an agricultural scientist with the climate change and food security research program. thank you very much for joining us. first of all, that level of vulnerability to climate change, how sure are we? >> of course, there are considerable uncertainties, but those are the things that we get from the report, that the temperature increases in a range. you can be relatively certain of what's coming. some of these changes we may be seeing to agricultural systems, to crop patterns, some of these thin